Concrete pipe.



' G. C. BARTRAM CONCRETE PIPE. APPLICAT50H FILED [5EC-28. 19:7.

, Patented Feb. 4, 1919.

- jecent sections each section. This pipe I so construct the rhesus for completing between them a a citizen of the United States,

,jeeent sections without ensues c. esnrnem, or EAST clerics, NEW Jesters.

CONCRETE PIPE.

Specification of Letters Patent.

Patented Fee, 2:,

Application filed. December 28, 917. Serial Kc. 209,369.

T 0 all whom it mm: concern:

Be it known that "L, GEORGE C. BARTRAM, residing at East Orange, in the countyof Essex and State of New Jersey, have invented certain new and useful Improvements in' Concrete Pipes, of which the following is a full, clear, and exact description.

"lheu a. reinforced diameter is laid under water.

concrete pipeof large or in Water hearing strata of yielding character it is difiicult to secure'for it a foundation of suiiicient firmness to prevent its uneven subsidence, so that when the pipe must begnede tight and pressure resisting, some speclal means must he resorted to to prevent leakage at the joints, Where there is any break fr true alinement or grade. 1

in some cases such pipes are used to carry sewerzwe or the like Where leakage is not a control ing footer, end in such cases the integrity of the line sufhciently maintained even though there he displacements of ad- With consequent impairment at the joints. 'With such conditions as these my present invention hats to deal.

Ihsve devised a. form of concrete pipe which is particularly adapted for subaqueous sewer pipes end which permits a certain amount of uneven settling orsinking of addestroyingv or impairing the useful properties of'the line, for. which purpose cost the abutting ends of the concretesections as the male and female ports of a hell and socket joint with the capability of e. certain play or movement and to preserve the integrity of the line I rovide across the joints metal ties or bonds etween the ends of longitudinal reinforcing bars or rods extending from end toend of and lay that the sectioiis are firmly and securely held together end to end by a continuous metal reinforcement while at the sometime the sections may settle unequally from true alinemeut Without destroying or materially effecting the continuity of the Whole as. a. conduit,

This improvement is illustrated in the accompanying drawing Which shows in section the shutting ends of two sections of pipe and continuous reinforcement.

bell, and between the two outer ends c I sockets E, set iu the cement.

- under Water.

The pipe, although not so shown, is intended to be a reinforced concrete pipe of the ordinary character, and generall of large diameter suitable for use as 51 subequeous sewer, as for example, for u cit" on the large lakes Where the sewerage is co out from thecity-to o. more or less distent point in the lake,

Each section is lllOldBGl with a relative short spigot A at one end, and e correspond ing bell 13' ut the other. Both spigot end bell, however, are molded with their contiguous feces conforming to the surface of sphere of proper dimensions, as indie? b" the. dotted line G, and of such reletrve dimensions that when. o gernen space b it is leftbetweenthe spigot and the base sections as shown.

Thisprovides for a movement oi. extent or" one section with respect to other, but to provide means for the ends in. contact, reinforcing ere laidlongitudinelly in the cement when the sections are molded and their ends surround To secure the objects of this iiivention, but two of rods are used.

When in the laying of the pipe two sections are joined, steel plugsF with eyes at their outer ends are driven into the sockets E and stoutrods G are then passed.- throngs the eyes and by means of nuts i the plugs and the ends of the sections are drawn cl is is closely together. This Work may he usually performed by divers, the

pipe

as If deemed necessary 2.- slight ploy provided for by not tightening up the n so that the pipe may sink slightly joint, or one section may sink with i once to the other, thus permitting one o loall and socket members to turn over the other. i

It is, of course", Well known that two rigid members, Whether pipes or not, be capable of a certain relative movement Iron: a right line if they are provided with n joint in the nature of a. hellend socket, this I do not claim asoi my invention.

spigot bf one section interfitting in the bell of an adjacent section and forming a ball and gocket joint, longitudinal reinforcing rods embedded in said sections, uniformly spaced sockets embedded in said sections near the ends thet'eof and connected by said reds, the sackets ln-ong section belng oppoi sitely disposed to the sockets in tin! next mi jacent section, plugs insci ted in mid soda-tr. and, adjustable tie rods uniting I110 pmxk mate and oppositely disposed plugfi.

In testimony whereof Ii. uflix my ssigxmturv.

GEORGE 0. BART 1AM. 

